20439616

素因数分解:

$2^6\times {\mathrm{389}}^1\times {\mathrm{821}}^1$

素因数の和:1222

約数の個数: 28

約数和(自身を含む): 40713660

約数和(自身を除く): 20274044

約数列:

[1, 2, 4, 8, 16, 32, 64, 389, 778, 821, 1556, 1642, 3112, 3284, 6224, 6568, 12448, 13136, 24896, 26272, 52544, 319369, 638738, 1277476, 2554952, 5109904, 10219808, 20439616]

約数ペア:

[(1, 20439616), (2, 10219808), (4, 5109904), (8, 2554952), (16, 1277476), (32, 638738), (64, 319369), (389, 52544), (778, 26272), (821, 24896), (1556, 13136), (1642, 12448), (3112, 6568), (3284, 6224)]